easy: Initialize info variables on easy init and duphandle

- Call Curl_initinfo on init and duphandle.

Prior to this change the statistical and informational variables were
simply zeroed by calloc on easy init and duphandle. While zero is the
correct default value for almost all info variables, there is one where
it isn't (filetime initializes to -1).

Bug: https://github.com/curl/curl/issues/1103
Reported-by: Neal Poole

8 files changed, 197 insertions, 6 deletions

diff --git a/lib/easy.c b/lib/easy.c
index eee1061e8..1242369d5 100644
--- a/lib/easy.c
+++ b/lib/easy.c
@@ -927,6 +927,8 @@ struct Curl_easy *curl_easy_duphandle(struct Curl_easy *data)
 
   Curl_convert_setup(outcurl);
 
+  Curl_initinfo(outcurl);
+
   outcurl->magic = CURLEASY_MAGIC_NUMBER;
 
   /* we reach this point and thus we are OK */
diff --git a/lib/getinfo.c b/lib/getinfo.c
index 9641d79dc..3186d8ac5 100644
--- a/lib/getinfo.c
+++ b/lib/getinfo.c
@@ -36,8 +36,11 @@
 #include "memdebug.h"
 
 /*
- * This is supposed to be called in the beginning of a perform() session and
- * in curl_easy_reset() and should reset all session-info variables.
+ * Initialize statistical and informational data.
+ *
+ * This function is called in curl_easy_reset, curl_easy_duphandle and at the
+ * beginning of a perform session. It must reset the session-info variables,
+ * in particular all variables in struct PureInfo.
  */
 CURLcode Curl_initinfo(struct Curl_easy *data)
 {
diff --git a/lib/url.c b/lib/url.c
index b997f419b..65c2e5414 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -92,6 +92,7 @@ bool curl_win32_idn_to_ascii(const char *in, char **out);
 #include "warnless.h"
 #include "non-ascii.h"
 #include "inet_pton.h"
+#include "getinfo.h"
 
 /* And now for the protocols */
 #include "ftp.h"
@@ -646,6 +647,8 @@ CURLcode Curl_open(struct Curl_easy **curl)
 
     Curl_convert_init(data);
 
+    Curl_initinfo(data);
+
     /* most recent connection is not yet defined */
     data->state.lastconnect = NULL;
 
diff --git a/lib/urldata.h b/lib/urldata.h
index 7c7bf1ba0..938462605 100644
--- a/lib/urldata.h
+++ b/lib/urldata.h
@@ -1105,7 +1105,7 @@ struct connectdata {
 
 /*
  * Struct to keep statistical and informational data.
- * All variables in this struct must be reset in Curl_initinfo().
+ * All variables in this struct must be initialized/reset in Curl_initinfo().
  */
 struct PureInfo {
   int httpcode;  /* Recent HTTP, FTP, RTSP or SMTP response code */
diff --git a/tests/data/Makefile.inc b/tests/data/Makefile.inc
index d82a6e656..e5a9e1fe7 100644
--- a/tests/data/Makefile.inc
+++ b/tests/data/Makefile.inc
@@ -157,7 +157,7 @@ test1516 test1517 \
 test1520 \
 \
 test1525 test1526 test1527 test1528 test1529 test1530 test1531 test1532 \
-test1533 \
+test1533 test1534 \
 \
 test1600 test1601 test1602 test1603 test1604 test1605 \
 \
diff --git a/tests/data/test1534 b/tests/data/test1534
new file mode 100644
index 000000000..f3cd2f0e3
--- /dev/null
+++ b/tests/data/test1534
@@ -0,0 +1,50 @@
+<testcase>
+<info>
+<keywords>
+HTTP
+HTTP GET
+</keywords>
+</info>
+
+#
+# Server-side
+<reply>
+<data nocheck="yes">
+HTTP/1.0 200 OK swsclose

+Last-Modified: Thu, 01 Jan 1970 00:00:30 GMT

+Content-Length: 0

+

+</data>
+</reply>
+
+# Client-side
+<client>
+<server>
+http
+</server>
+# tool is what to use instead of 'curl'
+<tool>
+lib1534
+</tool>
+<name>
+Test CURLINFO_RESPONSE_CODE
+</name>
+<command>
+http://%HOSTIP:%HTTPPORT/1534
+</command>
+</client>
+
+#
+# Verify data after the test has been "shot"
+<verify>
+<protocol>
+GET /1534 HTTP/1.1

+Host: %HOSTIP:%HTTPPORT

+Accept: */*

+

+</protocol>
+<errorcode>
+0
+</errorcode>
+</verify>
+</testcase>
diff --git a/tests/libtest/Makefile.inc b/tests/libtest/Makefile.inc
index da905706b..c1dc2f585 100644
--- a/tests/libtest/Makefile.inc
+++ b/tests/libtest/Makefile.inc
@@ -23,8 +23,8 @@ noinst_PROGRAMS = chkhostname libauthretry libntlmconnect                \
  lib1500 lib1501 lib1502 lib1503 lib1504 lib1505 lib1506 lib1507 lib1508 \
  lib1509 lib1510 lib1511 lib1512 lib1513 lib1514 lib1515         lib1517 \
  lib1520 \
- lib1525 lib1526 lib1527 lib1528 lib1529 lib1530 lib1531 lib1532 \
- lib1533 \
+ lib1525 lib1526 lib1527 lib1528 lib1529 lib1530 lib1531 lib1532 lib1533 \
+ lib1534 \
  lib1900 \
  lib2033
 
@@ -400,6 +400,10 @@ lib1533_SOURCES = lib1533.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS)
 lib1533_LDADD = $(TESTUTIL_LIBS)
 lib1533_CPPFLAGS = $(AM_CPPFLAGS) -DLIB1533
 
+lib1534_SOURCES = lib1534.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS)
+lib1534_LDADD = $(TESTUTIL_LIBS)
+lib1534_CPPFLAGS = $(AM_CPPFLAGS) -DLIB1534
+
 lib1900_SOURCES = lib1900.c $(SUPPORTFILES) $(TESTUTIL) $(WARNLESS)
 lib1900_LDADD = $(TESTUTIL_LIBS)
 lib1900_CPPFLAGS = $(AM_CPPFLAGS)
diff --git a/tests/libtest/lib1534.c b/tests/libtest/lib1534.c
new file mode 100644
index 000000000..61e72abb0
--- /dev/null
+++ b/tests/libtest/lib1534.c
@@ -0,0 +1,129 @@
+/***************************************************************************
+ *                                  _   _ ____  _
+ *  Project                     ___| | | |  _ \| |
+ *                             / __| | | | |_) | |
+ *                            | (__| |_| |  _ <| |___
+ *                             \___|\___/|_| \_\_____|
+ *
+ * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
+ *
+ * This software is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at https://curl.haxx.se/docs/copyright.html.
+ *
+ * You may opt to use, copy, modify, merge, publish, distribute and/or sell
+ * copies of the Software, and permit persons to whom the Software is
+ * furnished to do so, under the terms of the COPYING file.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ***************************************************************************/
+#include "test.h"
+
+#include "memdebug.h"
+
+/* Test CURLINFO_FILETIME */
+
+int test(char *URL)
+{
+  CURL *curl, *dupe = NULL;
+  long filetime;
+  int res = CURLE_OK;
+
+  global_init(CURL_GLOBAL_ALL);
+
+  easy_init(curl);
+
+  /* Test that a filetime is properly initialized on curl_easy_init.
+  */
+
+  res = curl_easy_getinfo(curl, CURLINFO_FILETIME, &filetime);
+  if(res) {
+    fprintf(stderr, "%s:%d curl_easy_getinfo() failed with code %d (%s)\n",
+            __FILE__, __LINE__, res, curl_easy_strerror(res));
+    goto test_cleanup;
+  }
+  if(filetime != -1) {
+    fprintf(stderr, "%s:%d filetime init failed; expected -1 but is %ld\n",
+            __FILE__, __LINE__, filetime);
+    res = CURLE_FAILED_INIT;
+    goto test_cleanup;
+  }
+
+  easy_setopt(curl, CURLOPT_URL, URL);
+  easy_setopt(curl, CURLOPT_FILETIME, 1L);
+
+  res = curl_easy_perform(curl);
+  if(res) {
+    fprintf(stderr, "%s:%d curl_easy_perform() failed with code %d (%s)\n",
+            __FILE__, __LINE__, res, curl_easy_strerror(res));
+    goto test_cleanup;
+  }
+
+  /* Test that a filetime is properly set after receiving an HTTP resource.
+  */
+
+  res = curl_easy_getinfo(curl, CURLINFO_FILETIME, &filetime);
+  if(res) {
+    fprintf(stderr, "%s:%d curl_easy_getinfo() failed with code %d (%s)\n",
+            __FILE__, __LINE__, res, curl_easy_strerror(res));
+    goto test_cleanup;
+  }
+  if(filetime != 30) {
+    fprintf(stderr, "%s:%d filetime of http resource is incorrect; "
+            "expected 30 but is %ld\n",
+            __FILE__, __LINE__, filetime);
+    res = CURLE_HTTP_RETURNED_ERROR;
+    goto test_cleanup;
+  }
+
+  /* Test that a filetime is properly initialized on curl_easy_duphandle.
+  */
+
+  dupe = curl_easy_duphandle(curl);
+  if(!dupe) {
+    fprintf(stderr, "%s:%d curl_easy_duphandle() failed\n",
+            __FILE__, __LINE__);
+    res = CURLE_FAILED_INIT;
+    goto test_cleanup;
+  }
+
+  res = curl_easy_getinfo(dupe, CURLINFO_FILETIME, &filetime);
+  if(res) {
+    fprintf(stderr, "%s:%d curl_easy_getinfo() failed with code %d (%s)\n",
+            __FILE__, __LINE__, res, curl_easy_strerror(res));
+    goto test_cleanup;
+  }
+  if(filetime != -1) {
+    fprintf(stderr, "%s:%d filetime init failed; expected -1 but is %ld\n",
+            __FILE__, __LINE__, filetime);
+    res = CURLE_FAILED_INIT;
+    goto test_cleanup;
+  }
+
+
+  /* Test that a filetime is properly initialized on curl_easy_reset.
+  */
+
+  curl_easy_reset(curl);
+
+  res = curl_easy_getinfo(curl, CURLINFO_FILETIME, &filetime);
+  if(res) {
+    fprintf(stderr, "%s:%d curl_easy_getinfo() failed with code %d (%s)\n",
+            __FILE__, __LINE__, res, curl_easy_strerror(res));
+    goto test_cleanup;
+  }
+  if(filetime != -1) {
+    fprintf(stderr, "%s:%d filetime init failed; expected -1 but is %ld\n",
+            __FILE__, __LINE__, filetime);
+    res = CURLE_FAILED_INIT;
+    goto test_cleanup;
+  }
+
+test_cleanup:
+  curl_easy_cleanup(curl);
+  curl_easy_cleanup(dupe);
+  curl_global_cleanup();
+  return res;
+}